/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    /* Colors - Finance Theme (Professional Blue-Green) */
    --color-bg: #F8FAFB;
    --color-bg-alt: #EEF2F5;
    --color-surface: #FFFFFF;
    --color-border: #E1E7EC;
    --color-border-light: #EDF1F4;

    --color-text: #1A2B3C;
    --color-text-secondary: #5A6978;
    --color-text-muted: #8A96A3;

    /* Finance-themed colors */
    --color-primary: #0066CC;
    --color-primary-hover: #0052A3;
    --color-primary-light: #E6F0FA;
    --color-accent: #00A67E;
    --color-accent-light: #E6F7F3;
    --color-warning: #F5A623;
    --color-danger: #DC3545;
    --color-success: #28A745;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Merriweather', Georgia, serif;

    /* Spacing */
    --container-max: 1200px;
    --content-max: 900px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Transitions */
    --transition: 0.3s ease;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(26, 43, 60, 0.04);
    --shadow-md: 0 4px 12px rgba(26, 43, 60, 0.06);
    --shadow-lg: 0 8px 24px rgba(26, 43, 60, 0.08);
}

/* Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-primary-hover);
}

/* ============================================
   Layout
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   Header
   ============================================ */
.header {
   
    top: 0;
    z-index: 100;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.logo:hover {
    color: var(--color-primary);
}

.logo-icon {
    color: var(--color-primary);
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
}

.nav a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition);
}

.nav a:hover {
    color: var(--color-text);
}

.nav a:hover::after {
    width: 100%;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md);
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 99;
    box-shadow: var(--shadow-md);
}

.mobile-nav.active {
    display: flex;
}

.mobile-nav a {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--spacing-sm);
    border-radius: 8px;
    transition: var(--transition);
}

.mobile-nav a:hover {
    background: var(--color-bg-alt);
    color: var(--color-text);
}

/* ============================================
   Main Content
   ============================================ */
.main {
    min-height: calc(100vh - 70px - 250px);
    padding: var(--spacing-xl) 0;
}

/* ============================================
   Articles
   ============================================ */
.articles-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.article {
    background: var(--color-surface);
    border-radius: 16px;
    padding: var(--spacing-xl) var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-light);
    max-width: var(--content-max);
    margin: 0 auto;
    width: 100%;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-primary-light);
}

.article-title {
    font-family: var(--font-serif);
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.article-description {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.article-content {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    line-height: 1.85;
    color: var(--color-text);
    overflow-x: hidden;
}

.article-content p {
    margin-bottom: var(--spacing-md);
}

.article-content h2 {
    font-family: var(--font-sans);
    font-size: 1.6rem;
    font-weight: 600;
    margin: var(--spacing-xl) 0 var(--spacing-md);
    color: var(--color-text);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-accent-light);
}

.article-content h3 {
    font-family: var(--font-sans);
    font-size: 1.35rem;
    font-weight: 600;
    margin: var(--spacing-lg) 0 var(--spacing-sm);
    color: var(--color-text);
}

.article-content h4 {
    font-family: var(--font-sans);
    font-size: 1.15rem;
    font-weight: 600;
    margin: var(--spacing-md) 0 var(--spacing-sm);
    color: var(--color-text);
}

.article-content ul,
.article-content ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.article-content li {
    margin-bottom: var(--spacing-xs);
}

.article-content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: var(--color-primary-light);
}

.article-content a:hover {
    color: var(--color-primary-hover);
    text-decoration-color: var(--color-primary);
}

.article-content blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    border-left: 4px solid var(--color-primary);
    background: var(--color-primary-light);
    border-radius: 0 8px 8px 0;
    font-style: italic;
}

.article-content img {
    border-radius: 12px;
    margin: var(--spacing-lg) 0;
}

/* ============================================
   Tables - Finance Style
   ============================================ */
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: 1.5;
    background: var(--color-surface);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.article-content table thead {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: white;
}

.article-content table th {
    padding: var(--spacing-md) var(--spacing-sm);
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.article-content table td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border-light);
    vertical-align: top;
}

.article-content table tbody tr:last-child td {
    border-bottom: none;
}

.article-content table tbody tr:hover {
    background: var(--color-bg-alt);
}

.article-content table tbody tr:nth-child(even) {
    background: var(--color-bg);
}

.article-content table tbody tr:nth-child(even):hover {
    background: var(--color-bg-alt);
}

/* Table number formatting */
.article-content table td.number,
.article-content table td:last-child {
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    text-align: right;
}

/* Positive/Negative values */
.article-content table .positive,
.article-content .positive {
    color: var(--color-success);
    font-weight: 500;
}

.article-content table .negative,
.article-content .negative {
    color: var(--color-danger);
    font-weight: 500;
}

/* Responsive table wrapper */
.table-wrapper {
    width: 100%;
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
    -webkit-overflow-scrolling: touch;
}

.table-wrapper table {
    margin: 0;
    min-width: 500px;
}

/* Comparison table style */
.article-content table.comparison {
    border: 2px solid var(--color-primary);
}

.article-content table.comparison th:first-child,
.article-content table.comparison td:first-child {
    background: var(--color-primary-light);
    font-weight: 600;
    color: var(--color-text);
    position: sticky;
    left: 0;
}

/* Simple bordered table */
.article-content table.simple {
    box-shadow: none;
}

.article-content table.simple thead {
    background: var(--color-bg-alt);
    color: var(--color-text);
}

.article-content table.simple th {
    border-bottom: 2px solid var(--color-primary);
}

/* Financial data table */
.article-content table.financial td:not(:first-child) {
    text-align: right;
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-size: 0.9rem;
}

.article-content table.financial tfoot {
    background: var(--color-bg-alt);
    font-weight: 600;
}

.article-content table.financial tfoot td {
    border-top: 2px solid var(--color-primary);
}

/* Caption */
.article-content table caption {
    padding: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-align: left;
    caption-side: bottom;
    font-style: italic;
}

/* ============================================
   Financial Highlight Boxes
   ============================================ */
.article-content .highlight-box,
.article-content .tip-box {
    background: var(--color-accent-light);
    border: 1px solid var(--color-accent);
    border-radius: 12px;
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.article-content .warning-box {
    background: #FFF8E6;
    border: 1px solid var(--color-warning);
    border-radius: 12px;
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.article-content .danger-box {
    background: #FEE;
    border: 1px solid var(--color-danger);
    border-radius: 12px;
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.article-content .info-box {
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary);
    border-radius: 12px;
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

/* ============================================
   Article Divider
   ============================================ */
.article-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) auto;
    max-width: var(--content-max);
}

.article-divider::before,
.article-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-border), transparent);
}

.article-divider span {
    color: var(--color-primary);
    font-size: 1.5rem;
}

/* ============================================
   Ad Blocks - Fixed Dimensions
   ============================================ */
.ad-block {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background: var(--color-bg-alt);
    border-radius: 12px;
    text-align: center;
    min-height: 100px;
    min-width: 300px;
    /* Добавить минимальную ширину */
    width: 100%;
    /* Занимать всю доступную ширину */
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed var(--color-border);
    overflow: hidden;
    /* Предотвратить переполнение */
}

/* Стили для ins элемента AdSense */
.ad-block .adsbygoogle {
    display: block;
    width: 100%;
    min-width: 300px;
    min-height: 100px;
}

.ad-block--top {
    margin-top: var(--spacing-lg);
}

.ad-block--middle {
    margin: var(--spacing-xl) 0;
}

.ad-block--bottom {
    margin-bottom: var(--spacing-lg);
}

/* На мобильных */
@media (max-width: 480px) {
    .ad-block {
        min-width: 250px;
    }

    .ad-block .adsbygoogle {
        min-width: 250px;
    }
}

/* ============================================
   Load More Button
   ============================================ */
.load-more-container {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-2xl);
}

.load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-surface);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md), 0 4px 12px rgba(0, 102, 204, 0.3);
}

.load-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 6px 20px rgba(0, 102, 204, 0.4);
}

.load-more-btn:active {
    transform: translateY(0);
}

.load-more-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Loading Spinner */
.loading {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
}

.loading.active {
    display: flex;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* No More Articles */
.no-more {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-text-secondary);
}

.no-more p {
    font-size: 1.125rem;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand .logo {
    display: inline-flex;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    max-width: 400px;
    line-height: 1.6;
}

.footer-links h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    padding: var(--spacing-xs) 0;
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-light);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.footer-bottom .disclaimer {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .article {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }

    .header .container {
        height: 60px;
    }

    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .article {
        padding: var(--spacing-lg);
        border-radius: 12px;
    }

    .article-title {
        font-size: 1.75rem;
    }

    .article-description {
        font-size: 1.05rem;
    }

    .article-content {
        font-size: 1.05rem;
    }

    .article-content h2 {
        font-size: 1.4rem;
    }

    /* Responsive tables */
    .article-content table {
        font-size: 0.85rem;
    }

    .article-content table th,
    .article-content table td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
    }

    .logo {
        font-size: 1rem;
    }

    .logo-icon {
        width: 20px;
        height: 20px;
    }

    .article {
        padding: var(--spacing-md);
    }

    .article-title {
        font-size: 1.5rem;
    }

    .load-more-btn {
        width: 100%;
        justify-content: center;
    }

    /* Stack tables on mobile */
    .article-content table,
    .article-content table thead,
    .article-content table tbody,
    .article-content table th,
    .article-content table td,
    .article-content table tr {
        display: block;
    }

    .article-content table thead {
        display: none;
    }

    .article-content table tr {
        margin-bottom: var(--spacing-sm);
        border: 1px solid var(--color-border);
        border-radius: 8px;
        overflow: hidden;
    }

    .article-content table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-sm);
        text-align: right;
        border-bottom: 1px solid var(--color-border-light);
    }

    .article-content table td::before {
        content: attr(data-label);
        font-weight: 600;
        text-align: left;
        color: var(--color-text);
    }

    .article-content table td:last-child {
        border-bottom: none;
    }
}

/* ============================================
   Policy Page Styles
   ============================================ */
.page-content {
    max-width: var(--content-max);
    margin: 0 auto;
    background: var(--color-surface);
    border-radius: 16px;
    padding: var(--spacing-xl) var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-light);
}

.page-content h1 {
    font-family: var(--font-serif);
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-primary-light);
}

.page-content h2 {
    font-size: 1.35rem;
    margin: var(--spacing-xl) 0 var(--spacing-md);
    color: var(--color-text);
}

.page-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.page-content ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.page-content li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-secondary);
}

.page-content a {
    color: var(--color-primary);
}

.last-updated {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

@media (max-width: 768px) {
    .page-content {
        padding: var(--spacing-lg);
    }
}